Which of the element having the following atomic
number has the maximum number of electrons
in the outer most shell
1) 2 2) 7 3) 9 4) 19
Answers
Answered by
0
Answer:
4 IS CORRECT ANSWER.....
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Answered by
1
Answer:
Explanation:
Helium has 2 electrons --- both in the first shell (so two valence electrons). Lithium has 3 electrons --- 2 in the first shell, and 1 in the second shell (so one valence electron).
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